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A131304 2*A089840 - A000012. 1

%I #4 Mar 03 2022 23:49:24

%S 1,3,1,5,5,1,7,3,3,1,9,13,5,3,1,11,15,7,5,3,1,13,11,11,9,5,3,1,15,7,9,

%T 7,9,5,3,1,17,9,13,11,11,11,5,3,1,19,33,15,137,9,11,5,3,1

%N 2*A089840 - A000012.

%F 2*A089840(deleting the right border of zeros) - A000012.

%e First few rows of the triangle:

%e 1;

%e 3, 1;

%e 5, 5, 1;

%e 7, 3, 3, 1;

%e 9, 13, 5, 3, 1;

%e 11, 15, 7, 5, 3, 1;

%e 13, 11, 11, 9, 5, 3, 1;

%e ...

%Y Cf. A089840, A131302, A131303, A122203, A122204.

%K nonn,tabl

%O 1,2

%A _Gary W. Adamson_, Jun 27 2007

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)